Battery life discharge rate

[Christopher]

Hello Everyone,

I made a semi-passive filter circuit that uses one 1.5 volt AA cell
with a constant drain of one milli-amp. If the 1.5v AA cell remained
above 1.1 volts for a year I won't bother using a on/off switch.

Will a AA last a year?

Are the Alkaline cells better in the long term than Heavy Duty AA?

Is the decay rate of a manufacturer's cells "honestly" documented some
where?

Thank you,

* * *
Christopher

Temecula CA.USA
http://www.oldtemecula.com

 

[ehsjr]

Hello Everyone,

I made a semi-passive filter circuit that uses one 1.5 volt AA cell
with a constant drain of one milli-amp. If the 1.5v AA cell remained
above 1.1 volts for a year I won't bother using a on/off switch.

Will a AA last a year?

Nope. Battery capacity for an alkaline AA is about 2850 maH
http://data.energizer.com/SearchResult.aspx
At 1ma, it will last a whole lot longer than 2850 hours, but
there are 8760 hours in a year.

Are the Alkaline cells better in the long term than Heavy Duty AA?

Check the url, make your own decision. Cost may come into
the equation!

Is the decay rate of a manufacturer's cells "honestly" documented some
where?

You mean self-discharge or shelf life figures?
Probably irrelevant in any event - these small batteries
are use & toss, so you keep extras on hand.

Ed

 

[Jasen Betts]

Hello Everyone,

I made a semi-passive filter circuit that uses one 1.5 volt AA cell
with a constant drain of one milli-amp. If the 1.5v AA cell remained
above 1.1 volts for a year I won't bother using a on/off switch.

Will a AA last a year?

more like 3 to 6 months. with a D cell you could get a year.

Are the Alkaline cells better in the long term than Heavy Duty AA?
yes.

Is the decay rate of a manufacturer's cells "honestly" documented some
where?

the use-by date is some indication.

Bye.
Jasen